Mouthpiece for telephone-transmitters, &amp;c.



No. 642,982. Patented Feb. 6, I900. G. B. HART & F. W. MILLIGAN.

MOUTHPIECE FOR TELEPHONE TRANSMITTERS, 8w.

(Application filed Mar. 7, 1599.)

ATTORNEYS,

Tn: noRRls PETERS no. PHum-LIYHQ. WASHINGTON. u c.

NTTED STATES FFICE.

PATENT GEORGE B. HART AND FRANCIS WV. MILLIGAN, OF ROCHESTER, NEW YORK.

MOUTHPIE CE FOR TELEPHONE-TRANSMITTERS, 800.

SPECIFICATION forming part of Letters Patent N 0. 642,982, dated February 6, 1900.

Application filed March 7,1899. Serial No. 708,083. (No model.)

To all whom it may concern.-

Be it known that we, GEORGE B. HART and FRANCIS W. MILLIGAN, of Rochester, in the county of Monroe, in the State of New York,

have invented certain new and useful Mouthpieces for Telephone-Transmitters, Speaking- Tubes, and Similar Articles, of which the following is a specification.

Our invention relates to mouthpieces for telephone-transmitters, speaking-tubes, and similar articles, and has for its object the production of a simple and practical device for constantly disinfecting a transmitter, speaking-tube, and similar article, and thereby preventing the transmission of infectious diseases and the propagation of bacilli; and to this end the invention consists in the combination, construction, and arrangement of the component parts of a mouthpiece for said 1o purpose, as hereinafter fully described, and

pointed out in the claims.

In describing this invention reference is bad to the accompanying drawings, forming part of this specification, in which like letters 2 5 indicate corresponding parts in all the views.

Figures 1 and 2 are respectively front and side elevations of a portion of a telephonetransmitter and our improved mouthpiece secured thereto, parts of said transmitter and mouthpiece being shown in section in Fig. 2. Figs. 3 and 4 are respectively isometric views of the detached base and the main portion of the tubular wall of our mouthpiece. Fig. 5 is an isometric view, partly broken away, of

3 5 the detached support for the disinfectant, the metallic perforated frame within said support, and the outer end of the tubular wall of our invention. Fig. 6 is a longitudinal sectional view, partly in elevation, of a difierent con- 0 struction of transmitter and a modified form of our mouthpiece secured to said transmitter. Figs. 7 and 8 are isometric views of the detached sections of the base of the mouthpiece seen in Fig. 6.

5 Our improved mouthpiece preferably consists of a base A, a tubular wall B, a support 0 for a disinfectant arranged within the wall B, and a frame E, inserted within the support 0.

The base A is of any desirable form, size,

and construction, being usually composed of sheet metal and having suitable means at its opposite ends, as spring-arms a, for attaching the same to the casing of a transmitter D. Said base is provided with a central opening a and with a flangetfi, which projects from its outer face, is formed of greater diameter than said opening, and is arranged concentric therewith. The described construction of base A is particularly applicable for attachment to the casing of an ordinary Blake transmitter; but in case our mouthpiece is applied to a long-distance transmitter a base of the construction seen in Figs. 6, 7, and 8 is preferable. This base consists of separable sections (1 a, the section co being composed of a split ring adapted to be clamped upon the casing D of a long-distance transmitter and the section a being attached by bolts a to the section a and provided with a central opening or and a projecting flange a, extend ing from its outer face and surrounding said opening.

The tubular wall B is of any desirable form, size, and construction, being usually formed circular in cross-section and increased in diameter from one end and having its smaller or inner end removably arranged within the flange a? and its outer end provided with a detachable cap 1), formed with a substantially central opening. The outer end of said tubular wall is provided with a closure b, which closes the opening of the cap 1) and may be of any desirable form, size, and construction, being here illustrated as a fiat disk pivoted to the tubular wall by a pivot b arranged at one side thereof and extending lengthwise of said wall. Said closure may be utilized to prevent the undue evaporation of the disinfectant when the mouthpiece is not in use.

The support 0 is formed of absorbent material and is generally tubular, being preferably of substantially the same external diameter as the interior face of the wall B. Said support may be saturated with any suitable disinfectant, unnecessary to herein describe, and is usually held in position by the perforated metallic frame E, which closely fits its interior face, is secured at its outer end to the cap b, previously described, and serves to facilitate the transmission of sound to the transmitter. Said frame F is unprovided with peripheral shoulders and being arranged within the support 0 and fixed to the cap I) is free tomove lengthwise independently of the support 0 and is readily removable with said cap.

Our improved mouthpiece is readily attached to a transmitter, speaking-tube, or similar article and is of such construction that the support for the disinfectant may be easily removed to permit the application of an additional supply of disinfectant or a new support.

The construction and operation of our mouthpiece will now be readily understood upon reference to the foregoing description and the accompanying drawings, and as it will be apparent that its exact detail construction and arrangement may be more or less varied without departing from the spirit of our invention we do not herein limit ourselves to such exact detail construction and arrangement.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A mouthpiece for telephone-transmitters, speaking-tubes and similar artic1es,'the same consisting of a tubular wall, a tubular support for a disinfectant arranged within the tubular wall, and a perforated frame inserted within the tubular support and movable lengthwise independently of the support, substantially as and for the purpose specified.

2. A mouthpiece for telephone-transmitters, speakingtubes and similar articles, the same consisting of a tubular wall, a tubular support for a disinfectant removably arranged within the tubular wall, and a perforated frame inserted within the tubular sup port and movable lengthwise independently of the support, said frame having its outer end engaged with the outer end of the tubular wall, substantially as and for the purpose described.

3. A mouthpiece for telephone-transmit ters, speaking-tubes and similar articles, the same consisting of a tubular wall having its outer end provided with a detachable cap, and a perforated frame arranged within the tubular wall for supporting a disinfectant, and having its outer end supported by the cap, substantially as and for the purpose specified.

4. A mouthpiece for telephone-transmitters, speaking-tubes and similararticles, the same consisting of a tubular wall having its outer end provided with a cap movable lengthwise of the contiguous portion of the wall, and a perforated frame arranged within the tubular wall for supportinga disinfectant and having its outer end fixed to the cap, substantially as and for the purpose set forth.

5. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a tubular wall having its outer end provided with a cap movable lengthwise of the contiguous portion of the wall, a tubular support for a disinfectant removably arranged within the tubular wall, and a perforated frame inserted within the tubular sup port and movable lengthwise independently of the support, said frame having its outer end fixed to the cap, substantially as and for the purpose specified.

6. A mouthpiece for telephone-transmitters, speakingtubes and similar articles, the same consisting of a tubular wall, a removable support for a disinfectant arranged within the tubular wall, and a closure for the outer end of the tubular wall said closure being removable with the support, substantially as and for the purpose set forth.

7. A mouthpiece for telephonetransmitters, speaking-tubes and similar articles, the same consisting of a tubular wall having its outer end provided with a detachable cap having an opening, a closure for the opening supported by the cap,and a frame arranged within the tubular wall for supportinga disinfectant and having its outer end supported by the cap, substantially as and for the purpose specified.

8. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a tubular wall having its outer end provided with a cap movable lengthwise of the contiguous portion of the wall and having an opening, a closure for the opening, and a perforated frame arranged within the tubular wall for supporting a disinfectant and having its outer end fixed to the cap, substantially as and for the purpose described.

9. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a tubular wall having its outer end provided withacap movable lengthwise of the contiguous portion of the wall and having an opening, a closure for the opening, a tubular support for a disinfectant removably arranged within the tubular wall, and a perforated frame inserted within the tubular support and movable lengthwise independently of the support, said frame having its outer end fixed to the cap, substantially as and for the purpose set forth.

10. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a base provided with means for securing the same in position, a tubular wall having its inner end removably secured to the base and its outer end provided with a detachable cap, and a perforated frame arranged within the tubular wall for supporting a disinfectant and having its outer end supported by the cap, substantially as and for the purpose specified.

11. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a base provided with means for securing the same in position, a tubular wall having its inner end secured to the base, a tubular support for a disinfectant removably arranged within the tubular wall, a perforated frame removably arranged within the tubular support and having its outer end detachably supported by the outer end of the tubular Wall, and a closure for the outer end of the tubular wall said closure being connected to the perforated frame, substantially as and for the purpose set forth.

12. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a base provided with means for securing the same in position, a tubular Wall having its inner end secured to the base and its outer end provided with a detachable cap having an opening, a closure for the opening supported by the cap, and a frame arranged Within the tubular wall for supporting a disinfectant and having its outer end supported by the cap, substantially as and for the purpose set forth.

13. A mouthpiece for telephone-transmitters, speaking-tubes and similar articles, the same consisting of a base provided with spring-arms for securing the same in position, a substantially central opening, and a flange projecting from its outer face and formed of greater diameter than the opening, a tubular wall having its inner end removably secured to the flange and its outer end provided with a detachable cap having an opening, a closure for the opening supported by the cap, a tubular support for a disinfectant removably arranged Within the tubular wall, and a perforated frame removably arranged within the tubular support and having its outer end supported by the cap, substantially as and for the purpose specified.

In testimony whereof We have hereunto signed our names, in the presence of two attesting wit-nesses, at Rochester, in the county of Monroe, in the State of New York, this 22d day of February, 1899.

GEORGE E. HART. FRANCIS W. MILLIGAN.

Witnesses:

HAMPDEN HYDE, ARTHUR E. PARSONS. 

